Youtube started transcoding 8K content back in 2015. The first video was Ghost Towns in 8K (FUHD), which was actually 6K upscaled. Here are two playlist with only 8K content: Youtube 早在 2015 年就开始对 8K 内容进行转码。第一个视频是8K 的 Ghost Towns (FUHD) ，它实际上是 6K 的升级版。以下是两个仅包含 8K 内容的播放列表：
Currently Youtube uses the VP9 codec to deliver 8K (and 4K for that matter) video. They also have encoded a few videos to the AV1 codec up to 8K: 目前，Youtube 使用 VP9 编解码器来传输 8K（以及 4K）视频。他们还将一些视频编码为 AV1 编解码器，最高可达 8K：